Hi guys I have three duck egg, on day 7-8 they had veins and lil black dot in the center. So i was all excited and thinking it was going well. It is now day 15 and i candled the 3 eggs, and i could not see red veins or nothing to think there was any veins. There are still black dots and they sure have gotten bigger since day 8 infact 10, There is 2 with to shadow dots when i candled them, and one with a dark dot with clear ring around it, Also to of the shells have a dark color to them as well but one does not! the one that does not have the dark patches has a clear spot on the shell. They do not smell or anything as off yet i am really hoping they are ok ! Can anyone give me any advise? if i should keep trying or not to bother anymore. Plus i put them in warm water and 2 sunk to the bottom and one floated to the top does that mean anything?.